Hyper Muscle Growth Stories

54,443 results
Orientation
Length
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Infinite Scroll

Autus Does a Mind and Body Good

by sexgundam666 on Sep 14, 2020
Sci-Fi & Fantasy

Visits from Chelsea were eventful. Though it was the same event played differently each time, it never ceased to stick out, witnessing the futa get lodged in the doorway. Marissa had a stock of oil for that purpose alone, helping her friend get in. Once, she left her in the door and took a nap, tired of the routine, and came back to Chelsea still trapped. Su...

The Breeder

by silent soul ken on Jan 19, 2020
Fetish

The students of Hallmore College stood in front of the scientist who stood there in front of a large device. It was strange on the top was an radar dish like device and there was a pod it was attached to with a control panel on the side. The scientist, Professor Evan Hedgerow, stood at the side looking both proud and nervous. He looked at the group of over 5...

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See Label for Instructions

by ash_rigby on Oct 12, 2020
NonHuman

This is a weird one, guys. But that's just what we do around here on this account! Anyway, this is a male solo scene involving extreme cock growth and the alien also ends up fucking himself with his tail. This is your last chance to turn around if that isn't your thing! Thank you and enjoy! ~*~ Flyx's recently-polished horns glinted in the bathroom light....

Star Wars Futa Force

by silent soul ken on Nov 7, 2018
Fan Fiction

The Jedi would beat out the Sith in numbers, due to a device called the Orgasm Bomb, Sith are reduced to a select few, Palpatine, Maul, and Ventress with Palpatine hiding her Sith background by using her powers to shrink her assets to the point she seems like a normal woman. Also she uses her own powers to prevent the Jedi from seeing into the future or seei...

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Samus and the Reality Altering Upgrades

by welldressedcrab on Nov 14, 2020
Science Fiction

Samus brought her ship into dock with the station, the docking bay walls closing behind her. In her adventures through the galaxy she had received a signal from a remote research station. The signal informed her that the station was inhabited by a scientist AI which was programmed to keep inventing and researching for eternity. If she came to investigate, sh...

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New-U: Celebrity Futas

by silent soul ken on Aug 22, 2018
Fetish

Director Elizabeth Malrow looked at the screen. "So it seems we're missing volunteer's for the Futa Body Models." She said to her chief of staff. Melissa Brun, her chief of staff, nodded "We could go the same route we went for the Male and Female models use celebrities." She said. Elizabeth nodded, "Put out the e-mails, remember we n...

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Growing and Shrinking Thoughts

by silent soul ken on Oct 16, 2018
Fetish

As stated earlier the MC is either a guy, a girl or a futa. Futa's can be born futa or have operations to turn futa but said operations are extremely expensive. The MC can have one exceptional talent be it something like athleticism, creative talent, or something similar. Otherwise they are an average person who happened to survive a freak accident which giv...

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Omni Story

by Ultra Bra on Oct 14, 2018
Fetish

You are Sophie. As far as you yourself think, you're an everyday, average twenty-something woman. Your life feels uneventful, your existence unexceptional. You loathe going to work, your lovelife offers no intrigue, and your room is a mess. It's late in the evening, and your daily routine has reached the familiar point of 'laying in bed to watch movies on th...

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Autus: Epilogue Pt. 02

by sexgundam666 on Dec 24, 2019
Sci-Fi & Fantasy

Author's Notes: WARNING!! This story contains extreme growth and Hyper sized cocks. If you've read the previous epilogue chapter, this may be up your alley, however if not, then I strongly urge that you either read it, or do not continue if cocks five stories tall does not appeal to you. You have been warned. Those who continue, enjoy. ***** Gwen's Journal...

Autus: Epilogue Pt. 01

by sexgundam666 on Oct 8, 2019
Sci-Fi & Fantasy

Diana's Journal – Entry 1 This is exceptionally late into the experiment. I honestly can't believe I didn't consider this before, though it's not all that surprising; I've been known to neglect things like this in the past. Allie says that it always makes her laugh, since I'm one of the more exceptional students in the university. I'd be lying if I said I d...